Improvement in bolter-journals



G. MOORE.

coLTER JOURNAL.

No.188,750. Patented March 27,1877.

Hmmm l minimum@ if Il mi) www lmmllh w M N. PETERS. PHDTO-LITHOGRPHER wum". \\MA VNU www plows.

- colter, and a construction of parts embodying .sents the upper end, and A' A' the lower and PATENT @Finca GILPIN MOORE, OF MOLINE, ILLINOIS, ASSIGNOR rIO DEERE & GO., OF SAME PLACE.

IMPRVOl/.EM-ENT IN COLTER-JOURNALS.

Specification forming partv of Letters Patent N o'. l'iS8,750, dated March 27, 1877 application filed 1 January 13, 1877.

To all lwhom t may concern Be it known that I, GILPIN MOORE, of Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Journaling Plow-Golters; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art toV which it appertains to make and use the saine, reference being had to the accompanying drawings, and to letters of reference-marked thereon, which form-a part of this specilication.'

My invention relates to improvements in journaling circular colters to the yokes by which they are secured to plows, to 'adapt them to withstand the increased strains to which they are subjected-,by use uponl wheel- The invention consists, primarily, in constructing the bosses of the colter with journal ends, which are provide with suitable bearings in or attached to the yoke. It further consists in constructing the bosses having the frusto-conical ends with a central aperture having an enlarged part next the colter, and a contracted portion at their outer ends,which enlarged portion vmay serve as an oil-reservoir, and the contracted portion form a bearing-surface on the axial bolt.

The invention'further consists in the use of substitutive boxes, having frusto-conical shaped recesses for bearings for the colterbosses, so constructed that they can 4be readily and easily secured in the ends of the yokearms.

In the accompanying drawings, Figure 1 is a central horizontal sectional view through a my invention. Fig. 2 is a perspective view, and Figs. 3 and 4 are detail views.

Referring to the parts by letters, A reprebifurcated ends or arms, of an ordinary form of yoke for connecting a wheel-colter as a caster-wheel to a plow. Bis an ordinary circular plow-colter, with bosses 'C secured one-to each ofits sides. The outer ends e of the bosses C are formed tapering outward, as shown at Fig. l. 0'0" is an aperture through the bosses C, the central portion C' of which is enlarged,` and the end portions C" contracted and cylindrical, as shown also at Fig. l. The frustoconical surfaces c and the surfaces O" are pret'- Verably cast on a chill. D D arejournal-boxes with frusto-conical interior surfaces to receive the similarly shaped journals c, and with exterior surfaces, as desired, but preferably as shown plainly at Fig. 3. The boxes D are preferably ot' malleable iron, and have each a spline, d, upon their exteriors, which spline seats in a groove, a', in a recess, a, in the lower end of the arm A', when said box is fixed in said recess a, as shown at Figs. l and 4, and thus secures the boxes D from rotating. E is an axial bolt, of a size to tit the contracted aperture G". The bolt E passes through the parts, as shown at Fig. l, and may be. tapped into one of the arms A', as shown at' same tigure; or it may have a nut on its threaded end.

The journals c are of such relative diameter to the recesses in the boxes D that they do not extend through the boxes D, as shown at Fig. 1, and thus al'ord facilities, in an evident manner, for tightening up the bearings, by drawing the arms A' toward each other by means of the bolt E, vand thus, in connection with the bearings at C" on the bolt E, producingl bearings which, after wearing, can be tightened up, as described, so as to hold the colter B firmly and true in the heavy work required with gang and sulky plows.

The enlarged aperture G' may be used as an oil-reservoir.

The tubular boxes D are substitutive, and may be replaced by new ones when broken or worn. It will be evident, also, that suitable recesses may be made in the ends of the arms A', and the boxes D dispensed with.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The plow-colter bosses C, having frustoconical ends c, arranged to operate with similarly-shaped apposed recesses in the arms A' of the colter-yoke A, substantially as described, and for the purpose specified.

2. The plow-colter bosses (l, having frustoconical ends c, arranged to operate with similarly-shaped apposed recesses in the arms A', and with the tightening-bolt E, substantially as described, and for the purpose specified.

3. The plow-colter bosses U, having frustoconical ends c, arranged to operate with similarly-shaped recesses in the arms A', and having a portion of their central aperture C" fitted and journaled on the bolt E, which bolt E serves at the same time as a tightening bolt, substantially as and for the purpose specified.

4. The substitutive journal boxes D, arranged to operate with the bosses C, arms A', and bolt E, substantially as described, and for the purpose specified.

two witnesses.

GILPIN MOORE. Witnesses:

A. M. BEAL, W. J. ENTRIKIN. 

